_sensible Pleasure_. So vast it the _variety of Objects_ which will come
under their Inflections, so many _different wayes_ there are _of handling_
them, so great is the _satisfaction_ of _finding_ out _new things_, that I
dare compare the _contentment_ which they will injoy, not only to that of
_contemplation_, but even to that which most men prefer of _the very Senses
themselves_.

And if they will please to take any incouragement from so mean and so
imperfect endeavours as mine, upon my own experience, I can assure them,
without arrogance, That there has not been any inquiry or Problem in
_Mechanicks_, that I have hitherto propounded to my self, but by a certain
method (which I may on some other opportunity explain) I have been able
presently to examine the possibility of it; and if so, as easily to
excogitate divers wayes of performing it: And indeed it is possible to do
as much by _this method_ in _Mechanicks_, as by _Algebra_ can be perform'd
in _Geometry_. Nor can I at all doubt, but that the same method is as
applicable to _Physical Enquiries_, and as likely to find and reap thence
at plentiful a crop of Inventions; and indeed there seems to be no subject
so barren, but may with this good husbandry be highly improv'd.

Toward the prosecution of this method in _Physical Inquiries_, I have here
and there _gleaned_ up an _handful_ of Observations, in the collection of
most of which I made use of _Microscopes_, and some other _Glasses_ and
_Instruments_ that improve the sense; which way I have herein taken, not
that there are not multitudes of useful and pleasant Observables, yet
uncollected, obvious enough without the helps of Art, but only to promote
the use of Mechanical helps for the Senses, both in the surveying the
already visible World, and for the discovery of many others hitherto
unknown, and to make us, with the great Conqueror, to be affected that we
have not yet overcome one World when there are so many others to be